The NETUM QR Code Scanner is a compact yet powerful tool for scanning both 1D and 2D barcodes. It features a physical power switch to save energy and supports Bluetooth, 2.4G wireless, and USB ...

Traditional 1D bar codes (with printed bars and spaces) are giving way to 2D bar codes that also include dots, hexagons, and even colors to encode more data. Bar-code scanners read 1D bar codes.